Bandage



June 29, 1 4 H. FREIBERGER BANDAGE Filed Nov. 29, 1951 E K N m E5 7 5 7 1pm A Patented June 29, 1954 UNITED STATES OFFICE BANDAGE Herman Freiberger', Glen Rock, N. J., assi-gnorto Medical Fabrics 00., Inc., Paterson, N. J.', a corporation of New Jersey Application November 29, 1951, Serial No. 258,829

3 Claims. 1

The present invention relates to' a bandage and more particularly to an adhesive bandage of the type having a substantially small dressing pad as a component thereof.

Adhesive bandages of the type generally employed for the less serious wounds, e. g. finger wounds, comprise a stripof cloth fabric having a surface thereof coated with an'adhesive material, an absorbent pad located substantially centrally of the coated surface, and a covering of a substantially stiff gauze material such as crino'l'in over the coated and padded surface.

Although the use of such bandages is advantageous in the treatment of, for example, finger cuts or other small skin lacerations, there are certain disadvantages or shortcomings encountered in their application and use for certain kinds of wounds. For example, in the case of finger wounds, or wounds on body joint areas, such bandages restrict movement. When. applied especially to wounded finger joint areas, the bandage retards and limits finger movement and also interfereswith the dexterity of unwounded fingers. When applied to wounded fingers of persons, e. g. mechanics, handling wet substances or greasy or oily substances such as petroleum products, the bandages are readily disengaged from the wounded area because the moisture, oil or grease renders the adhesive layer nonadhesive. Although coverings, e. g. rubber gloves,

may be used over suchbandages under the conditions above mentioned, the use of gloves or other such coverings interferes with the dexterity of the fingers.

It is an object of the present invention to provide an adhesive bandage. It is. another object of the present invention to provide an adhesive bandage adapted to allow substantial movement of wounded joint areas, e; g. finger'joints, etc It is a further object of the present invention to provide an adhesive bandage which will maintain adherence to wounded areas under wet, greasy or oily conditions. Other objects and advantages of the present invention will become apparent from the description hereinafter following and the drawings forming a part hereof in which:

Fig. 1 is a longitudinal section of the bandage,

Fig. 2 is a perspective view of the bandage showing a member thereof partly removed therefrom,

Fig. 3 is an exaggerated cross-sectional view along lines 33 of Fig. 2, and

Fig. 4 is an elevational applied View of the bandage.

The present invention deals with an adhesive bandage particularly adapted to allow substantial movement of wounded joint areas and capable of maintaining adherence under wet, greasy or oily conditions whereby ordinary adhesive' bandages are rendered non-adhesive and are readily disengaged from wounded areas. Furthermore, the particularcombination of the bandage components hereinafter'described render an elastic bandagecapable of maintaining elasticity under the above conditions and also capable of substantially retaining the original dressed shape and form of the bandage under conditions which would ordinarily distort the dressed shape and form of the bandage.

The fabric. from which a strip component of present invention is manufactured is provided by a weaving or'kn'itting process in the form of a woven sheet or as an elastic knitted product of circular knitting machines, tricot machines, etc'., and such woven sheet or knitted material is particularly treated preferably prior to the cutting of strips therefrom.

The woven sheetmaterial or the knitted material is impregnated with a penetrating solution of latex or substantially similar rubber material ofsynthetic rubber, e. g. elastic polymers of vinyl chloride or elastic polymers of iso butylene, whereby the solution impregnates the woven or knitted material. The impregnating material is either self-setting or is otherwise set or cured after impregnation.

The impregnated woven. sheet is advantageous for use as a bandage material in combination with other materials to provide the finished bandage product for use over wounded joint areas other than finger joints where. movement is substantially limited, e. gshoulder joints.

The impregnated. knitted product is the preferred embodiment. of the present invention since as abandage component it is universally applicable over any joint area and particularly finger joints because its elasticity is particularly suitable for such joint areas. A knitted product such for example as jersey cloth has an inherent elasticity. Such a material without impregnation as above set forth has a tendency to curl, loses at least some of its elasticity if stretched beyond a normal elastic potential and is otherwise distorted when a stiffening member, e. g, a stiff gauze strip, is removed from a bandage of which such an unimpregnated cloth is a component. However, the impregnated knitted product not only maintains its shape but preserves the elasticity of the knitted material and the elasticity thereby imparted to the impregnated knitted bandage 3 component is the resultant of the inherently elastic knitted material in combination with the elasticity of the solidified or cured impregnating component.

Figs. 1 and 2 illustrate a longitudinal section and a perspective viewrespectively of a bandage of the present invention and comprises preferably an elastic strip l or :base strip of knitted strands of fibrous material impregnated with a penetrating solution of latex or synthetic rubber wherein not only the strands are impregnated with the said solution but the interstices between the said strands are substantially filled with an elastic film of the impregnating component when the said component is set or is in its solid elastic phase and thereby constitutes an elastic connective film between the impregnated strands. The strip 1 is coated with an adhesive layer 2 on one side thereof and an absorbent pad 3 is positioned substantially centrally of the bandage on the adhesive layer 2. A stiff gauze strip and preferably a pair of stiff gauze strips 4 and 5 each having a width corresponding to that of the impregnated strip I are positioned over the adhesive surface 2 and overlap each other over the pad 3.

Fig. 3 illustrates an enlarged cross-section of the bandage along lines 3-3 of Fig. 2 and particularly shows the impregnated nature of the elastic strip I.

Fig. 4 illustrates an applied view of the bandage over a finger joint in accordance with the applicability of the bandage as hereinbefore described.

In applying the bandage the stiff gauze strips 4 and 5 are removed to expose the adhesive surface which is positioned and secured across the wound so that the absorbent gauze member 3 contacts the wound. In view of the elasticity of the bandage the joint may be flexed without disengagement or loosening of the bandage from its originally applied position. Since the impregnated strip l is resistant to penetration by water, oil, etc., the bandage maintains its original position and the adhesive layer is not affected by the said water, oil, etc., which would otherwise under such conditions become nonadhesive. Furthermore, the elasticity of the bandage is maintained under the above normally adverse conditions since the elastic film of the impregnating material between the fibers of the strip I maintains the original shape and form of the bandage. Moreover, the maintained elasticity of the bandage permits a substantially normal fiow of blood in the capillaries in the vicinity of the wound thereby permitting healing action to function unhindered as opposed to constricting forces in the vicinity of the wound as provided by ordinary non-elastic bandages. With the bandage of the present invention, a

dressing bandage may be applied with an optimum pressure which is maintained so that any flexing of the joint to which the bandage is applied stimulates blood circulation in the vicinity of the wound.

What I claim is:

1. An elastic adhesive bandage comprising an elastic base strip member, an adhesive coating on a surface of the base strip member, an absorbent pad located substantially centrally of the coated surface, a protective strip member over the said coated surface and said pad, said base strip member comprising a strip of fibrous cloth impregnated with an elastic substance constituting a solidified elastic product of a penetrating solution of said substance, and a film of said substance interconnecting the strands of said cloth.

2. An elastic adhesive bandage comprising an elastic base strip member, an adhesive coating on a surface of the base strip member, an absorbent pad located substantially centrally of the coated surface, a substantially stifi gauze strip over the said coated surface and said pad, said base strip member comprising a strip of knitted fibrous material impregnated with an elastic substance constituting a solidified elastic product of a penetrating solution of said substance, the strands of said knitted material being impregnated with said substance and a film of said substance interconnecting said strands.

3. An elastic adhesive bandage comprising an elastic base strip member, an adhesive coating on a surface of said base strip member, an absorbent pad located substantially centrally of the coated surface, a substantially stiff gauze strip over the said coated surface and said pad, said base strip member comprising a strip of elastic knitted fibrous material impregnated with an elastic substance constituting a solidified elastic product of a penetrating solution of said substance, the strands of said knitted material being impregnated with said substance and a film of said substance interconnecting said strands, said elastic knitted fibrous material and said impregnating substance providing an elastic base strip member resistant to penetration by fluids.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,093,910 Farrell Sept. 21, 1937 2,342,300 Penksa Feb. 22, 1944 2,473,062 Kennedy et al June 14, 1949 FOREIGN PATENTS Number Country Date 545,582 Great Britain June 3, 1942 548,949 Great Britain Oct. 30, 1942 

